Intrexon Surges

Our number one gainer of the day is Intrexon Corp (NYSE:XON), up +10.69%. A company engaged in synthetic biology industry, Intrexon was recently given an upgrade and is presenting at the 2014 Barclays Global Healthcare Conference today. The stock is up +28.11% YTD and is in the investment portfolios of billionairs Daniel Loeb, David Einhorn and Boone Pickens.

Second is Sarepta Therapeutics Inc (NASDAQ:SRPT), which increased +6.27%. The George Soros pick is up +38.68% this year.

Last up Tiger Global Management bet SolarCity Corp (NASDAQ:SCTY), its price surging +6.24% midday. The company announced a new agreement with Best Buy today that is expected to boost sales as it broadens its customer base.

Down -4.68%, Voltari Corp (NASDAQ:VLTC) takes the second spot on today’s list of midday losers. The mobile advertising company is up +7% for the year and increased +4.02% yesterday, so this is likely a case of price direction. Carl Icahn has a position in this one.

Rounding out our daily ranking is Beazer Homes USA, Inc. (NYSE:BZH), which fell -4.00%. The share price of BZH is down -16.67% this year. Beazer Homes is part of David Tepper’s portfolio.